Shamokin is a city in Northumberland County, Pennsylvania, at the western edge of the Anthracite Coal Region. (The original Saponi village of Shamokin was located near the current site of Sunbury, the seat of Northumberland County.) At the 2010 census the population was 7,374 residents. The city of Shamokin is bordered by its sister community, Coal Township, Pennsylvania, and by the World's largest man-made mountain, the Glen Burn Colliery Cameron Culm Bank.
The colliery was in operation until the 1970s and was later dismantled. According to the United States Census Bureau, the city has a total area of 0.8 square miles (2.1 km2), all of it land. Shamokin has two small creeks that divide the town. Carbon Run merges with Shamokin Creek in the north of the town and ultimately empties into the Susquehanna River just south of Shamokin Dam near Sunbury, PA.